Mental Health Therapist

Hannah Marie Ostunio, APCC

1 Hope Dr, Tustin, California, 92782-0221

About Hannah Marie Ostunio

Hannah Marie Ostunio is a therapist based in Tustin, California who is specialized in Mental Health Counselor. Active license number of Hannah Marie Ostunio is 21392 for Mental Health Counselor in California. Her current practice location is 1 Hope Dr, Tustin. Patients can reach her at 714-247-4300. Hannah Marie Ostunio is APCC in Mental Health Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1710811138.

Hannah Marie Ostunio is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Practice Information

Hannah Marie Ostunio speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Hannah Marie Ostunio
Specialization Mental Health Counselor
Credentials APCC
Gender Female
Practice Address: 1 Hope Dr,
Tustin, CA - 92782-0221

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1710811138
NPI Enumeration Date: 10 Jun, 2026
NPI Last Update On: 10 Jun, 2026

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Hannah Marie Ostunio are as mentioned below.

License NumberSpecializationStateStatus
21392Mental Health Counselor CaliforniaPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Hannah Marie Ostunio
2066 Sea Cove Ln,
Costa Mesa, CA - 92627-4034
Phone: 714-247-4300

Book an Appointment with Hannah Marie Ostunio

To schedule an appointment, contact Hannah Marie Ostunio at 1 Hope Dr, Tustin, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Hannah Marie Ostunio:

Hannah Marie Ostunio is a therapist specializing in Mental Health Counselor. She is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Yes, Hannah Marie Ostunio is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Hannah Marie Ostunio practices at 1 Hope Dr, Tustin, California, 92782-0221.

To schedule an appointment with Hannah Marie Ostunio, please contact the office at 714-247-4300.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.